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https://issues.apache.org/jira/browse/HADOOP-3687?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chris Smith reassigned HADOOP-3687:
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Assignee: Chris Smith
> Ability to pause/resume tasks
> -----------------------------
>
> Key: HADOOP-3687
> URL: https://issues.apache.org/jira/browse/HADOOP-3687
> Project: Hadoop Core
> Issue Type: New Feature
> Components: mapred
> Reporter: Chris Smith
> Assignee: Chris Smith
> Priority: Minor
>
> It would be nice to be able to pause (and subsequently resume) tasks that are
> currently running, in order to allow tasks from higher priority jobs to
> execute. At present it is quite easy for long-running tasks from low priority
> jobs to block a task from a newer high priority job, and there is no way to
> force the execution of the high priority task without killing the low
> priority jobs.
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